Abstract
In August, 2007 a 63-year-old woman was found on X-ray images to have a left cervical tumor and an abnormal right lung shadow ; metastatic thyroid and lung cancer was diagnosed. Histological findings and immunological staining suggested that the primary lesion was a colonic cancer. On colonoscopy, a stage IV ascending colon cancer was diagnosed. Due to severe stenosis, a right hemicolectomy was done in October 2007 followed by 4 courses of mFOLFOX6 chemotherapy in November 2007. A left thyroid lobectomy and an upper right lung lobectomy were done in February 2008. On histopathology, a mucinous moderately differentiated adenocarcinoma (SS N1 H0 M1 stage IV) was diagnosed. The patient's postoperative course was good. A adjuvant chemotherapy using a single TS-1 agent was given. There has been no recurrence during one year and three months of follow-up.
